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ENH: Add UNIQUE and NOT NULL constraints

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Stewart Douglas
2015-09-10 11:53:24 -04:00
committed by jfkirk
parent ee4aa7327b
commit 38f3e6c713
1 changed files with 8 additions and 0 deletions
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zipline/assets/asset_writer.py
+8
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@@ -180,6 +180,8 @@ class AssetDBWriter(with_metaclass(ABCMeta)):
sa.Column(
'sid',
sa.Integer,
unique=True,
nullable=False,
primary_key=constraints,
),
sa.Column('symbol', sa.Text),
@@ -196,6 +198,8 @@ class AssetDBWriter(with_metaclass(ABCMeta)):
sa.Column(
'exchange_id',
sa.Integer,
unique=True,
nullable=False,
primary_key=constraints,
),
sa.Column('exchange', sa.Text),
@@ -207,6 +211,8 @@ class AssetDBWriter(with_metaclass(ABCMeta)):
sa.Column(
'root_symbol_id',
sa.Integer,
unique=True,
nullable=False,
primary_key=constraints,
),
sa.Column('root_symbol', sa.Text),
@@ -225,6 +231,8 @@ class AssetDBWriter(with_metaclass(ABCMeta)):
sa.Column(
'sid',
sa.Integer,
unique=True,
nullable=False,
primary_key=constraints,
),
sa.Column('symbol', sa.Text),